Patents by Inventor Liangliang Zheng

Liangliang Zheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180174542
    Abstract: The present application includes a display driving circuit, driving method thereof, and display device. A voltage detection circuit is added to an existing display drive circuit, and the voltage detection circuit determines, according to a standard reference voltage signal outputted by a logic circuit, whether a reference voltage signal outputted by a power supply management circuit is abnormal. If the reference voltage signal is determined to be abnormal, the power supply management circuit is controlled to stop outputting the reference voltage signal, such that the power supply management circuit is in a static mode, and therefore, a display panel is in a constant white or constant black mode.
    Type: Application
    Filed: April 11, 2017
    Publication date: June 21, 2018
    Inventors: Liangliang ZHENG, Tingting JIN
  • Patent number: 9949892
    Abstract: Medical devices, plug-ins, systems, and methods for CPR quality feedback are disclosed. The medical devices can calculate peripheral circulation relevant parameters based on measured signals containing at least partial hemodynamic characteristics. Amplitude and area characteristics included in the peripheral circulation relevant parameters can further be determined for providing feedback and control relating to CPR quality during the compression process. Also, compression interruption during CPR can be evaluated based on a pulse waveform generated from the measured signals.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: April 24, 2018
    Assignees: PEKING UNION MEDICAL COLLEGE HOSPITAL, SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Jun Xu, Xuezhong Yu, Fei Han, Liangliang Zheng, Huadong Zhu, Cheng Wang, Xiaocui Zhang, Chen Li, Jingming Yang, Xingliang Jin
  • Patent number: 9934717
    Abstract: Provided are a source driver and a driving method thereof, an array substrate and a display apparatus. The source driver comprises a plurality of output channels, a plurality of output amplifiers corresponding to the plurality of output channels and a bias circuit configured to supply the output amplifiers with bias currents. The driving method comprises: acquiring resistance values of the output channels (101); and for each of the output channels, setting an amplitude of the bias current supplied to the output amplifier corresponding to the output channel from the bias circuit, according to the resistance value of the respective output channel, so that the bias current of the output amplifier corresponding to the output channel with a larger resistance value being greater than or equal to the bias current of the output amplifier corresponding to the output channel with a smaller resistance value in amplitude (102).
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: April 3, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang Zheng, Jian He
  • Publication number: 20170301306
    Abstract: The present invention provides a gate driving method and a gate driving device for a liquid crystal display panel. The gate driving method includes: dividing a gate driving device into a plurality of gate driving units according to positions of the plurality of output channels of the gate driving device relative to a central output channel, and respectively setting bias currents outputted from the plurality of gate driving units such that the smaller an average distance of output channels driven by the gate driving unit from the central output channel is, the smaller the bias current outputted by the gate driving unit is set. The present invention can lower power consumption of the gate driving method and further lower power consumption of the liquid crystal panel.
    Type: Application
    Filed: January 5, 2016
    Publication date: October 19, 2017
    Inventors: Liangliang ZHENG, Jian HE
  • Patent number: 9793006
    Abstract: The present disclosure provides a gate driving circuit and a display apparatus, wherein the gate driving circuit comprises a shift register (10) including a plurality of shift register units connected with each other sequentially, and the gate driving circuit further comprises: a first strobe module (20) and/or a second strobe module (30); the first strobe module (20), connected to a gate scanning trigger signal line (STV) and strobe signal lines (CS0, CS1); the second strobe module (30), connected to the strobe signal lines.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: October 17, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang Zheng, Jian He
  • Publication number: 20170186388
    Abstract: A driver IC for driving a display panel, a display device and a method for driving the driver IC are provided. The driver IC is provided with N pins corresponding to N signal transmission lines of the display panel respectively. Each pin is connected to one corresponding signal transmission line through one transmission wire. The N pins include a first pin and a second pin. The transmission wires include a first transmission wire connected to the first pin and a second transmission wire connected to the second pin and having a length less than the first transmission wire. The driver IC includes a signal generation module configured to generate N driving signals. The N driving signals include a first driving signal corresponding to the first pin and a second driving signal corresponding to the second pin and having a current intensity less than the first driving signal.
    Type: Application
    Filed: October 9, 2015
    Publication date: June 29, 2017
    Applicants: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.
    Inventors: Liangliang ZHENG, Jian HE, Xia FENG, Tingting JIN
  • Patent number: 9653036
    Abstract: The method for adjusting a gamma voltage comprises: applying a reference common electrode voltage and a to-be-adjusted gamma voltage to a display module; collecting first light intensity data when the display module displays a grayscale test pattern after the reference common electrode voltage and the to-be-adjusted gamma voltage are applied; plotting a testing gamma curve in accordance with the first light intensity data; when the testing gamma curve is not located within the acceptable range of the standard gamma curve, adjusting the to-be-adjusted gamma voltage currently applied to the display module, until the testing gamma curve is located within the acceptable range of the standard gamma curve; and when the testing gamma curve is located within the acceptable range of the standard gamma curve, determining the to-be-adjusted gamma voltage currently applied to the display module as a final gamma voltage.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: May 16, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang Zheng, Jian He, Tingting Jin, Jiacheng Huang
  • Patent number: 9583059
    Abstract: The present invention provides a level shift circuit, an array substrate and a display device. The level shift circuit comprising: a first level non-inverting input terminal, a first level inverting input terminal, a second level non-inverting input terminal, a second level inverting input terminal, a level state transferring unit and a second level driving unit; the level state transferring unit receives a first level input through the first level non-inverting input terminal and the first level inverting input terminal, and transfers a high and low state of the input first level to the second level driving unit; the second level driving unit outputs a second level of a corresponding state to the second level non-inverting input terminal and the second level inverting input terminal according to the input high and low state, wherein the first level is not equal to the second level.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: February 28, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang Zheng, Jian He, Tingting Jin
  • Publication number: 20160351147
    Abstract: The present disclosure provides an apparatus for driving a display substrate, a method for driving a display substrate and a display device, the apparatus for driving a display substrate comprising: a comparator for comparing a received original display data with a pre-stored reference display data to generate a comparative result, a control signal generation unit for generating a control signal when the comparative result shows that the original display data is the same as the reference display data, the control signal being used for controlling pre-set functional units within the time sequence controller and the source driver to be into a standby state, and an output unit for outputting a pre-stored effective display data under a control of the control signal.
    Type: Application
    Filed: May 26, 2016
    Publication date: December 1, 2016
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang ZHENG, Tingting JIN
  • Publication number: 20160343340
    Abstract: The method for adjusting a gamma voltage comprises: applying a reference common electrode voltage and a to-be-adjusted gamma voltage to a display module; collecting first light intensity data when the display module displays a grayscale test pattern after the reference common electrode voltage and the to-be-adjusted gamma voltage are applied; plotting a testing gamma curve in accordance with the first light intensity data; when the testing gamma curve is not located within the acceptable range of the standard gamma curve, adjusting the to-be-adjusted gamma voltage currently applied to the display module, until the testing gamma curve is located within the acceptable range of the standard gamma curve; and when the testing gamma curve is located within the acceptable range of the standard gamma curve, determining the to-be-adjusted gamma voltage currently applied to the display module as a final gamma voltage.
    Type: Application
    Filed: December 17, 2013
    Publication date: November 24, 2016
    Applicants: BOE TECHNOLOGY GROUP CO., LTD, HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: LIANGLIANG ZHENG, Jian HE, Tingting JIN, Jiacheng HUANG
  • Publication number: 20160343292
    Abstract: Provided are a source driver and a driving method thereof, an array substrate and a display apparatus. The source driver comprises a plurality of output channels, a plurality of output amplifiers corresponding to the plurality of output channels and a bias circuit configured to supply the output amplifiers with bias currents. The driving method comprises: acquiring resistance values of the output channels (101); and for each of the output channels, setting an amplitude of the bias current supplied to the output amplifier corresponding to the output channel from the bias circuit, according to the resistance value of the respective output channel, so that the bias current of the output amplifier corresponding to the output channel with a larger resistance value being greater than or equal to the bias current of the output amplifier corresponding to the output channel with a smaller resistance value in amplitude (102).
    Type: Application
    Filed: June 19, 2015
    Publication date: November 24, 2016
    Inventors: Liangliang ZHENG, Jian HE
  • Patent number: 9495930
    Abstract: A shift register according to the present disclosure may specifically include multi-level shift register units, a first connecting TFT set and a second connecting TFT set. In the multi-level shift register units, control signal input ends of odd-number-level shift register units are inputted with a first control signal and control signal input ends of even-number-level shift register units are inputted with a second control signal. Connecting TFTs in the first connecting TFT set and the second connecting TFT set are configured to achieve an electrical connection between gate electrode signal output ends of odd-number-level shift register units and even-number-level shift register units in the shift register under a control of a control signal transmitted by a timing controller.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: November 15, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang Zheng, Jian He, Tingting Jin
  • Publication number: 20160049208
    Abstract: The present disclosure provides a gate driving circuit and a display apparatus, wherein the gate driving circuit comprises a shift register (10) including a plurality of shift register units connected with each other sequentially, and the gate driving circuit further comprises: a first strobe module (20) and/or a second strobe module (30); the first strobe module (20), connected to a gate scanning trigger signal line (STV) and strobe signal lines (CS0, CS1); the second strobe module (30), connected to the strobe signal lines.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 18, 2016
    Inventors: Liangliang ZHENG, Jian HE
  • Publication number: 20160012790
    Abstract: The present invention provides a level shift circuit, an array substrate and a display device. The level shift circuit comprising: a first level non-inverting input terminal, a first level inverting input terminal, a second level non-inverting input terminal, a second level inverting input terminal, a level state transferring unit and a second level driving unit; the level state transferring unit receives a first level input through the first level non-inverting input terminal and the first level inverting input terminal, and transfers a high and low state of the input first level to the second level driving unit; the second level driving unit outputs a second level of a corresponding state to the second level non-inverting input terminal and the second level inverting input terminal according to the input high and low state, wherein the first level is not equal to the second level.
    Type: Application
    Filed: May 29, 2014
    Publication date: January 14, 2016
    Inventors: Liangliang ZHENG, Jian HE, Tingting JIN
  • Publication number: 20150339999
    Abstract: A shift register according to the present disclosure may specifically include multi-level shift register units, a first connecting TFT set and a second connecting TFT set. In the multi-level shift register units, control signal input ends of odd-number-level shift register units are inputted with a first control signal and control signal input ends of even-number-level shift register units are inputted with a second control signal. Connecting TFTs in the first connecting TFT set and the second connecting TFT set are configured to achieve an electrical connection between gate electrode signal output ends of odd-number-level shift register units and even-number-level shift register units in the shift register under a control of a control signal transmitted by a timing controller.
    Type: Application
    Filed: July 7, 2014
    Publication date: November 26, 2015
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: LIANGLIANG ZHENG, JIAN HE, TINGTING JIN
  • Publication number: 20150164339
    Abstract: This disclosure relates to methods, devices and systems for real-time recognition of restoration of spontaneous circulation (ROSC) in the cardio-pulmonary resuscitation (CPR) process. Recognition mechanisms in both time domain and frequency domain are provided for the ROSC recognition, where the time-domain recognition logic may detect the ROSC by recognizing envelope features of sampled signals in the time domain, and the frequency-domain recognition logic may detect the ROSC by recognizing spectral peaks at different frequency points continuously or significant variations of amplitude of spectral peaks in the frequency spectrum.
    Type: Application
    Filed: August 18, 2014
    Publication date: June 18, 2015
    Inventors: Jun Xu, Xuezhong Yu, Fei Han, Liangliang Zheng, Huadong Zhu, Cheng Wang, Xiaocui Zhang, Chen Li, Jingming Yang, Xingliang Jin, Yangyang Fu, Dongqi Yao
  • Publication number: 20150105637
    Abstract: Medical devices, plug-ins, systems, and methods for CPR quality feedback are disclosed. The medical devices can calculate peripheral circulation relevant parameters based on measured signals containing at least partial hemodynamic characteristics. Amplitude and area characteristics included in the peripheral circulation relevant parameters can further be determined for providing feedback and control relating to CPR quality during the compression process. Also, compression interruption during CPR can be evaluated based on a pulse waveform generated from the measured signals.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 16, 2015
    Inventors: Xuezhong Yu, Jun Xu, Fei Han, Liangliang Zheng, Huadong Zhu, Cheng Wang, Xiaocui Zhang, Chen Li, Jingming Yang, Xingliang Jin